01H019 - Walter 19/64 Inch SST Stub Drill Bit - 135 Degree Split Point

Precision Drilling with Walter SST Stub Drills

The Walter 19/64" SST Stub Drill (01H019) is a high-performance cutting tool engineered specifically for the demanding requirements of industrial fabrication and maintenance. Unlike standard jobber length drills, this stub drill—often referred to as a screw machine length drill—features a shorter flute and overall length. This compact design inherently increases the rigidity of the bit, allowing users to apply higher feed pressure without the risk of flexing or snapping the tool. This makes it an exceptional choice for drilling into tough materials like stainless steel and mild steel, where stability is paramount to achieving a clean, accurate hole.

One of the standout features of the Walter SST line is the 135° split point geometry. This advanced tip design creates a self-centering action that bites into the material immediately upon contact. For professionals working with sheet metal or rounded surfaces, such as pipes and tubing, this eliminates the frustrating tendency of drill bits to "walk" or wander across the workpiece. Consequently, the need for pre-drilling center punches is virtually eliminated, streamlining your workflow and improving overall efficiency. The split point also reduces the thrust load required to penetrate the metal, resulting in less operator fatigue during repetitive drilling tasks.

Durability is further enhanced by Walter's proprietary bronze SST surface treatment. This specialized coating helps to dissipate heat and reduce friction between the bit and the workpiece, extending the tool's life even under high-stress conditions. The drill is particularly effective on thin-walled materials, where its sharp cutting edges produce round, burr-free holes with minimal deformation of the surrounding metal. Whether used in a stationary drill press or a portable hand drill, the Walter 19/64" SST Stub Drill delivers consistent, professional results in the most challenging environments.

Key Technical Benefits

The combination of a heavy-duty web construction and the short stub length makes this drill bit highly resistant to breakage, a common issue in hand-held drilling operations where maintaining a perfectly perpendicular angle is difficult. By minimizing deflection, the 01H019 ensures that every hole is straight and true to size.